遗漏的部分

lci/include/lci/Term.h

@@ -0,0 +1,46 @@
+#pragma once
+#include <iostream>
+#include <cstring>
+#include <fcntl.h>
+#include <unistd.h>
+namespace qing {
+class Term {
+public:
+	/* 需要输入当前的控制台号(源头tty) */
+	Term(int target_tty, int origin_tty) {
+		this->origin_tty = origin_tty;
+		chvt(target_tty);
+		HideCursor(target_tty);
+	}
+	~Term(){ /* 切回源tty */
+		chvt(origin_tty);
+	}
+private:
+	int origin_tty;
+	static int open_tty(int num) {
+		char path[16] = {'\0'};
+		snprintf(path, sizeof(path), "/dev/tty%d", num);
+		int d = open(path, O_WRONLY);
+		if (d == -1)
+			throw std::runtime_error(path);
+		else
+			return d;
+	}
+	static void HideCursor(int id) {
+		int d = open_tty(id);
+		const char *hide = "\033[?25l";
+		if (write(d, hide, strlen(hide)) == -1){
+			close(d);
+			throw std::runtime_error("term writting");
+		}
+		close(d);
+	}
+	static void chvt(int id) {
+		char cmd[16] = {'\0'};
+		snprintf(cmd, sizeof(cmd), "chvt %d", id);
+		int err = system(cmd);
+		if (err)
+			throw std::runtime_error("chvt");
+	}
+};
+}